At least it was only a confinement and not punishing her physically. In my country, it was seen normal for parents to discipline their child using belt and slippers when they did something wrong either small or big.
If only Sylvia just talked it out with her parents about the mental abuse that she's suffering from the society, then they could prevent her personality from going awry but I bet she didn't talked it out and just keep it all to herself.
I mean, people in their society probably didn't talked badly and openly about her if her parents were present since it's still a child of a high rank noble or if they heard rumors about it, her parents would probably just see it as a trivial matter, so they might've just dismissed it.
Although, I still think that both sides have its own faults and their communication with each other is rather in shambles which is definitely needed to be fix, but I'm glad that the Sylvia right now step up and voice her concern.










And we will finally see Damian. I can't wait to see with more fluffy and jealousy moments.